Governor for band-cutters and feeders.



No. 7|4,932. Patented Dec. 2, I902.

E. W. MILLER.

GOVERNOR FOR BAND CUTTEBS AND FEEDERS.

A uaeion and Feb. 10, 1902.

(I0 noel.)

ilNrTnn STATES PATENT OFFICE.

EDWIN \VOOD MILLER, OF OTTAWVA, KANSAS.

GOVERNOR FOR BAND-CUTTERS AND FEEDERS.

SPECIFICATION formingpart of Letters Patent No. 714.932, dated December 2, 1902.

Application filed February 10,1902. Serial No. 93,315. (No modeld T0 aZZ whom, it HY/(111,! concern:

Be it known that I, EDWIN WOOD MILLER, a citizen of the United States, residing at Ottawa, in the county of Franklin and State of Kansas, have invented certain new and useful lmprovementsin Governors for Band-Cutters and Feeders, of which the following is a specification.

My invention relates to an improvement in governors or speed-regulators for band-cutters and feeders for threshing-machines.

The invention has for its object to provide a governor or speed-regulator for band-cutters and feeders which is simple and inexpensivein construction and effective in operation and which is adapted to be mounted on the shaft carrying the band-cutter, which shaft is driven from the threshing-cylinder, and when the speed of the said threshingcylinder is reduced below the proper speed or that required for effective work the frictiomclutches of the governor will be automatically disengaged from the casing or disk with which they contact and allow said disk to remain idle on the shaft carrying the bandcutter knife and cause a stoppage of the carrier-belt and feeding-forks until the'threshing-cylinder resumes its normal rate of speed.

The invention consists in the several features and combination of features, as more fully hereinafter described and claimed.

In the drawings which illustrate my invention, Figure l is a side view in elevation showing my invention as applied to the shaft of the band-cutter of a threshing-machine. Fig. 2 is a side elevation of the governor, on an enlarged scale, with the cap-cover of the disk or casing removed; Fig. 3, a section on line w 00 of Fig. 2; Figs. 4 and 5, details.

Referring to the drawings, in which like letters of reference denote like parts through out the several views, A represents the shaft that carries the band-cutter of a threshingmachine.

B is the governor or speed-regulator, which is provided with a casing or disk 0, loosely mounted on the shaft A and provided with an annular rim D and a hub E, having a sprocket-wheel F connected thereto by means of a suitable clutch. Said sprocket-wheel, by means of the clutch, is adapted to be removed when it is desired to put on a smaller one for a slow speed or feed or to put on a larger one for a fast speed or feed. It is very important in threshing that the speed of the carrier and feed-forks be gaged to suit the condition of the straw, and consequently'the governor is constructed so thatit may be readily removed from the band-cutter shaft and the size of the sprocket-wheel changed, as before described.

0 is a cap or cover to protect the governor mechanism from dust or weather.

G is the revoluble arm of the governor, provided with a hub H and fixed rigidly to shaft by means of set-screw h. The opposite side edges of the arm G are provided with laterally-projecting lugs or stops I. Curved clutcharms J are pivoted to the opposite ends of the arm G at K, and each is provided with a friction-shoe L, a weight M, and a projecting bracket N.

O is a rod having a semicircular curved middle portion P for the purpose of allowing it to pass around the shaft A. Said rod is mounted at Q in the brackets N, and each of its ends are provided with ascrew-nut R and a washer S. Spiral springs T are placed around the rod 0, one end of each bearing against one of the brackets N and the opposite end against one of the washers S.

U is a sprocket-wheel which operates the carrier-shaft, and V a sprocket-wheel which operates the oscillating deflector of the threshing-machine.

W is a sprocket-chain which passes over the sprocket-wheels F, U, and V.

X is an idler for taking up the slackin the sprocket-chain WV, and Y an idler for changing its direction.

The operation is as follo we: The threshingmachine is set in motion, which revolves the hand-cutter shaft A, and when said shaft attains the required speed the centrifugal force will move the clutch-arms J outward and cause the friction-shoes L to engage with the arm of the casing or disk, so that the said casing and the sprocket-wheel F, connected thereto,willbe turned with the shaft A, which will impart motion to the sprocketchain, which in turn will operate the sprocket-wheels U and V. Just as soon as the velocity of the shaft A decreases or falls below the required speed the springs will draw the friction-shoes of the clutch-arms away from the rim of the casing or disk and the sprocket wheels and chain will cease to operate, the lugs or stops I serving to limit the withdrawal of the clutcharms by intercepting the bracket N on each said clutch-arm. By the above it will be seen that the action of the governor is automatic. The clutch-arms J can be adjusted and set by adjusting the tension of the springs T by means of the screw-nuts B, so that the friction-shoes will engage the rim of the casing or disk at any determined rate of speed. Both of the springs T can be adjusted by either one of the screw-nuts R.

I do not wish to be limited to the precise construction herein shown and described, as the same may be varied somewhat without departing from the spirit of my invention.

Having thus described my invention, What I claim is 1. In agovernor for band-cutters and feeders, a casing loosely mounted on a revoluble shaft, an arm keyed to said shaft, lugs on said arm, clutch-levers pivoted to the ends of said arm having their ends extended to form a bracket, and means to cause said clutchlevers to intermittently engage said casing and said lugs, substantially as shown and described.

2. In a governor for band-cutters and feeders, an arm keyed to a revolving shaft, a

clutch-lever pivoted to each end of said arm having its free end extended and forming a perforated bracket, a rod extending through said perforations, a spring mounted between each end of the rod and said bracket to normally hold said clutch-lever depressed, and a lug or stop on each side of said arm to bear against each bracket and limit the depressed movement of the clutch-lever, substantially as shown and described.

3. A governor for band-cutters and feeders comprising a revoluble arm mounted on a 

